Yahya related to me from Malik from Abu'z Zinad from al-Araj from Abu Hurayra that the Messenger of Allah ﷺ mentioned the day of jumua and said, "There is a time in it when Allah gives to a muslim slave standing in prayer whatever he asks for," and the Messenger of Allah ﷺ indicated with his hand how small it was.
أَنَّ رَسُولَ اللَّهِ ﷺ ذَكَرَ يَوْمَ الْجُمُعَةِ فَقَالَ فِيهِ سَاعَةٌ لاَ يُوَافِقُهَا عَبْدٌ مُسْلِمٌ وَهُوَ قَائِمٌ يُصَلِّي يَسْأَلُ اللَّهَ شَيْئًا إِلاَّ أَعْطَاهُ إِيَّاهُ وَأَشَارَ رَسُولُ اللَّهِ ﷺ بِيَدِهِ يُقَلِّلُهَا